20123320011103 has 2 divisors, whose sum is σ = 20123320011104. Its totient is φ = 20123320011102.

The previous prime is 20123320011073. The next prime is 20123320011143. The reversal of 20123320011103 is 30111002332102.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20123320011103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20123320011143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10061660005551 + 10061660005552.

It is an arithmetic number, because the mean of its divisors is an integer number (10061660005552).

Almost surely, 2^{20123320011103} is an apocalyptic number.

20123320011103 is a deficient number, since it is larger than the sum of its proper divisors (1).

20123320011103 is an equidigital number, since it uses as much as digits as its factorization.

20123320011103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 20123320011103 its reverse (30111002332102), we get a palindrome (50234322343205).

The spelling of 20123320011103 in words is "twenty trillion, one hundred twenty-three billion, three hundred twenty million, eleven thousand, one hundred three".